Float for vacuum-controlled liquid-feeding systems.



C. (ii PAYS FLOAT Fon VACUUM wwwmain LIQL Patented [500. 3, 19N

of which is` closed and extends above the float as at 10 which is customary, and the solid portion 11 which is securely attached within the lower end of the hollow ortion 9 and preferably at the junction of t eliollow portion and the bottom of the float where a solid union is made between the stem and the bottom of the float. The upper end of the hollow portion of the stem is also securely fixed to the upper end of the float through which it passes, as for example, by soldering.

Outside of and upper end of the wall of thel float and comniunicating with the interior of they hollow portion of the stem is formed a small hole 12, and a similar hole 13 is formed through the wall of the hollow portion of the stem close lo the bottoni and inside of the float.

There. is suggested at lll a small shield or proteetin,r plate in front of the hole 1;), which may or may not be employed as desired, but it may be found to act advantageously in preventing the liquid from splashing directly into the hole, however, it is not eonsidered essential to prevent the liquid thus entering, as the novel function resulting from the new combination is that of keeping the float at all times empty regardless of how the liquid may enter saine.

From the foregoing it is evident that the interior of the float; 7 thus communicating with the interior of the upper chamber in which it is housed will he influenced by the atmospheric conditions within the chamber. As u Vacuum is bein )rodueed within the chamber 2, the air wi l e drawn out of the float through the hollow stem l), and, if any liquid is in the float by reason either of an aeeident or a leak iii the float, it will immediately be drawn up through the hollow stein and discharged into the chamber L. and this draining process will act at ull times si1iiul taneously with the forming of a. vacuum in the chamber 2, thus absolutely preventing the accumulation of any appreciable. amount ot' liquid in the float even though the. latter may develop a leak to some considerable extent, or'happen to be faulty in construction in respect to its being air tight.

Having thus described my invention,

in close proximity to the i and beyond both ends of the receplaele, a l

hole forming eommunieatiou between the interioi' of the Spindle and the interior of the receptacle and a vent hole torn'iiugj commu mention between they interior of the spindle and the air outside of the float.

2. Fhe combination with a vacuum liquid fuel feeding system having a vacuum eliamber therein and a valve operating lion# iu the chamber, ot' a hollow ventral suplmrlinhoA stein within the float, a hole within the upper` end of the siem communicating with :he interior thereot` and the interior of the rai-unan rhainbeiv, und a hole lhrough the lower und of the hollow portion ot' the stein commun:` eating,r with the interior thei'eoiI and the iiiterior of the llo-at.

3. The -ombination with a float ol' they ehararter deserihed, of a hollow ventral .s1ipporting spindle withlthe hollow poitiou ex tending abore'the upper end nt the float. a solid extension within the lower end of the spindle depending below the Float, a hole through one side of the hollow portion of the spindle adjacent the lower end of the float and internally thereof and a hole through the hollow portion of the spindle adjacent the upper end of the tloat and externally thereof.

4. The combination willi a float of the eharaeter deseribed, of a hollow central spindle extending above and below the float, the upper extension aeting as supporting means and the lower extension acting as a guide for the float` a hohl lhrough one wall of the hollow portion of they spindle externally of the upper end of the float and a siinila r hole in the spindle adjacent the lower end and internally of the float substantially :is and for the purpose described.

In testimony whereof I hereunto atlix my signature in the presenee of two witnesses.

i CLARENCE C. FY. l it nesses L. (l. BiioNsoN, S. GEO. STEVENS.

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